Stem for bicycle handlebars



FIG. 1 is a side elevation view of a stem for bicycle handlebars showing my new design it being understood that the opposite side is a mirror image thereof;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a side elevation view of a stem for a bicycle handlebars showing a second embodiment of my new design it being understood that the opposite side is a mirror image of that shown;

FIG. 6 is a front elevation view of FIG. 6;

FIG. 7 is a top plan view of FIG. 6; and

FIG. 8 is a rear elevation view of FIG. 6. 

The ornamental design for a stem for bicycle handlebars, as shown and described. 